diff --git a/tests/test-commit.out b/tests/test-commit.out
new file mode 100644
--- /dev/null
+++ b/tests/test-commit.out
@@ -0,0 +1,90 @@
+Traceback (most recent call last):
+  File "/tmp/hgtests.22041.15131.11536.3935/install/bin/hg", line 13, in ?
+    commands.run()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1809, in run
+    sys.exit(dispatch(sys.argv[1:]))
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1945, in dispatch
+    return d()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1930, in <lambda>
+    d = lambda: func(u, repo, *args, **cmdoptions)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 663, in commit
+    repo.commit(files, message, opts['user'], opts['date'], match)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/localrepo.py", line 398, in commit
+    n = self.changelog.add(mn, changed, text, tr, p1, p2, user, date)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/changelog.py", line 42, in add
+    raise ValueError('impossible time zone offset: %d' % offset)
+ValueError: impossible time zone offset: 4444444
+transaction abort!
+rollback completed
+Traceback (most recent call last):
+  File "/tmp/hgtests.22041.15131.11536.3935/install/bin/hg", line 13, in ?
+    commands.run()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1809, in run
+    sys.exit(dispatch(sys.argv[1:]))
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1945, in dispatch
+    return d()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1930, in <lambda>
+    d = lambda: func(u, repo, *args, **cmdoptions)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 663, in commit
+    repo.commit(files, message, opts['user'], opts['date'], match)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/localrepo.py", line 398, in commit
+    n = self.changelog.add(mn, changed, text, tr, p1, p2, user, date)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/changelog.py", line 38, in add
+    when, offset = map(int, date.split(' '))
+ValueError: invalid literal for int(): 1	15.1
+transaction abort!
+rollback completed
+Traceback (most recent call last):
+  File "/tmp/hgtests.22041.15131.11536.3935/install/bin/hg", line 13, in ?
+    commands.run()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1809, in run
+    sys.exit(dispatch(sys.argv[1:]))
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1945, in dispatch
+    return d()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1930, in <lambda>
+    d = lambda: func(u, repo, *args, **cmdoptions)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 663, in commit
+    repo.commit(files, message, opts['user'], opts['date'], match)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/localrepo.py", line 398, in commit
+    n = self.changelog.add(mn, changed, text, tr, p1, p2, user, date)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/changelog.py", line 38, in add
+    when, offset = map(int, date.split(' '))
+ValueError: invalid literal for int(): foo
+transaction abort!
+rollback completed
+Traceback (most recent call last):
+  File "/tmp/hgtests.22041.15131.11536.3935/install/bin/hg", line 13, in ?
+    commands.run()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1809, in run
+    sys.exit(dispatch(sys.argv[1:]))
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1945, in dispatch
+    return d()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1930, in <lambda>
+    d = lambda: func(u, repo, *args, **cmdoptions)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 663, in commit
+    repo.commit(files, message, opts['user'], opts['date'], match)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/localrepo.py", line 398, in commit
+    n = self.changelog.add(mn, changed, text, tr, p1, p2, user, date)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/changelog.py", line 38, in add
+    when, offset = map(int, date.split(' '))
+ValueError: invalid literal for int(): 
+transaction abort!
+rollback completed
+Traceback (most recent call last):
+  File "/tmp/hgtests.22041.15131.11536.3935/install/bin/hg", line 13, in ?
+    commands.run()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1809, in run
+    sys.exit(dispatch(sys.argv[1:]))
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1945, in dispatch
+    return d()
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 1930, in <lambda>
+    d = lambda: func(u, repo, *args, **cmdoptions)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/commands.py", line 663, in commit
+    repo.commit(files, message, opts['user'], opts['date'], match)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/localrepo.py", line 398, in commit
+    n = self.changelog.add(mn, changed, text, tr, p1, p2, user, date)
+  File "/tmp/hgtests.22041.15131.11536.3935/install/lib/python/mercurial/changelog.py", line 40, in add
+    raise ValueError('date exceeds 32 bits: %d' % when)
+ValueError: date exceeds 32 bits: 111111111111
+transaction abort!
+rollback completed